Home / 28,323,261,681.52-39,085,076,455.80-15,635,724,917.68

Finding the Fourth Proportional to 28,323,261,681.52, 39,085,076,455.80 and 15,635,724,917.68

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Solution

The fourth proportional to 28,323,261,681.52, 39,085,076,455.80 and 15,635,724,917.68 is: 21,576,734,725.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,323,261,681.52 : 39,085,076,455.80 = 15,635,724,917.68 : x
  2. Step 2: Convert to fraction form
    28,323,261,681.52/39,085,076,455.80 = 15,635,724,917.68/x
  3. Step 3: Cross multiply
    28,323,261,681.52x = 39,085,076,455.80 × 15,635,724,917.68
  4. Step 4: Simplify right side
    28,323,261,681.52x = 611,123,503,849,379,987,456
  5. Step 5: Solve for x
    x = 611,123,503,849,379,987,456/28,323,261,681.52
  6. Step 6: Final answer
    x = 21,576,734,725.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.